Fatal error: Uncaught Error: Interface 'Concrete\Core\StyleCustomizer\Normalizer\VariableInterface' not found in /home/gmcguire/public_html/concrete5/concrete/src/StyleCustomizer/Normalizer/ColorVariable.php:7 Stack trace: #0 {main} thrown in /home/gmcguire/public_html/concrete5/concrete/src/StyleCustomizer/Normalizer/ColorVariable.php on line 7